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More than 50 Mississippi runners took part in Monday's Boston Marathon. Many had crossed the finish line minutes before the explosions. State officials said none of the Mississippi runners were injured.

Runner Darryl Lehtola on Tuesday wore his Boston Marathon T-shirt from when he ran the race in 2005.

"You know, I have been there on that street. I know how people are lined up on that street," Lehtola said of the bombing scene.

Lehtola and others at Stinky Feet Athletics, a retail store for runners, have tried to keep tabs with the runners from Mississippi who were on the course when the bombs went off.

StinkyFeet set up a 5K for Tuesday night in Flowood. Some of the runners participating had taken part in the Boston Marathon before and they're hoping to raise awareness about what's being done locally for the victims.

"It just proves that you never know what will be your last day and you need to live it to the fullest," said runner Jennifer Mulholland. "It will definitely affect me from here on out."

Stinky Feet is also planning a blood drive next Thursday.

Mississippi's emergency responders and law enforcement are asking residents not to change how they go about their daily activities and keep an eye out. There are high visibility areas like the Mississippi River bridges, the nuclear power plant at Port Gibson, or any shopping mall that could be risk, state officials said.

"We have got to all stay vigilant and if you see something a little out of the ordinary in your neighborhood, where you go to work, or places you are familiar with, and you see something out of order, pick up the phone and call 911. Don't try to handle it yourself. Let the people who are trained to deal with it, deal with it," said Mississippi Department of Public Safety spokesman Warren Strain.

The Mississippi Analysis and Information Center is now linked with 78 similar centers across the nation. The center at the Mississippi Emergency Management Agency headquarters had to turn off the monitors before a 16 WAPT News crew could come in to hide any sensitive information being sent out about the investigation and other threats.

Gov. Phil Bryant on Tuesday signed an executive order calling for flags to be flown at half-staff until sunset on April 20, "in honor of those affected by the tragedy in Boston."